Shock-loader.



No. 891,008. YATENTED JUNE 16, 1908. T. ROBSON & W. G. FISHER.

SHOCK LOADER. APPLICATION HLBD AUG. 27. 190e. RBNBWED MAY 2. 1908.

4 SHEETS-SHEET 1.

No. 891,008. PATENTED .TUNE 16, 1908. T. ROBSON & W. G. FISHER.

SHOCK LOADER.

APPLICATION FILED AUG. 27. 1906. BBNBWED MAY 2. 190s.

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SHOCK LOADER. APPLICATION FILED AUG. 27. 190e. RBNBWBD MAY 2, 190s.

4 SHBBTS--SHEBT 3.

T. ROBSON a W. G. FISHER. SHOCK LOADER.

APPLICATION FILED AUG. 27. 1906. RENHWED MAY 2, 1908.

PATENTED JUNE 16, 1908.

4 SHEETS-SHEET 4..

. ocated well to the THOMAS' RoBsoN AND WALTER GEORGE FISHER, OE ALLIsToN, ONTARIO, CANADA.

SHOCK-LOADER.

)Application led August Specification of Letters Patent. 2v, iena-serial No. 332,243. Renewed may 42, 190s. serial No. 430,537.

' estantes June 16, 1.908.

To all whom it may concern:

Be it known that we, THOMAS RoBsON and WALTER GEORGE FISHER, both of the town of Alliston, in the county of Simcoe,in the Proviiice of Ontario, Canada, have invented certain new and useful Improvements in Shock- Loaders, of which the following is the specification.

Our invention relates to improvements in shock loaders patented in the Dominion of Canada under No. 93458 on the 6th day of June, 1905, and the object of the present invention is first,-to provide an adequate means whereby the shock may be picked up without any liability of its bein thrown away from the carrier prongs and t e picking up elevator, and discharged from the elevator clear of the prongs in a proper position on to the elevating apron, second means whereb the machine may be prevented from tipping as the picking up elevator encounters the shock, thirdly,-to provide an improved arrangement of drive and clutch mechanism which will allow of a substantially horizontal rear apron being sup orted temporarily to act as a table in gat ering scatter sheaves, and fourthly,-to

provide a simple and secure means for holding' the side elevator at any desired angle necessary to discharge the shock on to the wagon. To effect these objects We have constructed and arranged our machine with a suitable frame at the front of which is carried the inclined picking up elevator to the rear of which is located the horizontal apron at one side, and at one side of the latter the side elevator.

The machine is supported on a main driving wheel, an end wheel located substantially opposite to the main drive wheel on the opposite side of the machine, and leading whee s front and between the side of the picking up elevator and connected by a bar to the main frame opposite and in front of the elevator, all the parts being otherwise arranged and constructed as hereinafter more particularly explained.

Figure 1, is a perspective view of our machine complete, the elevator being intermediately broken away. Figi 2, is a side sectional elevation through the center of the picking up elevator and horizontal apron. Fig. 3, is a plan,` intermediately broken away. Fig. 4, is a back view of the machine showing the drive and means for raising and lowering the elevator, the frame carrying the horizontal apron being intermediately broken away.

ly,-to provide a -Fig. 5, is a detail showing the means of vwithdrawing the picking up prongs beneath the guard stri s.

In the (ii'awings like letters of referenceindicate corresponding parts in each figure.

A is the main frame which is substantially rectangular in form and it comprises the end bar A and intermediate bar A2, extending ybar A3, opposite end bar 4, the front bar A5 extending from the -bar A4 to the bar A2, the bar` A extending from the bar A3 to the bar A and the rear bar A7 extending across the full width of the machine.

B are the side boards of the picker elevator and C C are .the to and bottom cross bars extending from side board to side board and carrying the guard strips D and D. It will be noticed that the major portions of the guard stri s D are inclined and straight. The top, owever, is curved as indicated, being fastened at the extreme end to the bar C. The bottom is also curvedin the form of a com ound curve and fastened to the bar C. T e strip D is differently formed from the strip D, the maj or portion being straight, but the upper portion being provided with a extends up above the curved to of the stri D and is fastened by a slottedug and bo t D5 and D6 tothe side bars B. The bottom of the strip D is provided also-with a quicker compound curve D3 and the extreme end is fastened to a cross bar D4. g

E and E are the top and bottom sprocket wheels'respeetively, which carry the end sprocket chains E2. The sprocket wheels E and E are carried by.the shafts 2 land 3 respectively which are journaled in suitable bearings as indicated.

F is a guiding strip located to the rear of the sprocket chain E2 and having a substantially crescent shaped upper end F.

G is the back of the picking up elevator which extends from the bar C to the bar Ae to which it is secured. l

H are cross bars between the side bars B designed to stiffen the elevator frame.

I are cross bars which carry the prongs I and are connected to a link in the sprocket chain E2 at the end by the pins I2 which carr at their outer ends the rollers I3. Each bar carries an arm I4 Which extends in the direction of movement of the sprocket chains. The arm I4 is crank shaped and carries the rollers I5.

We may here state that both ends of the quicker curve D2 of compound form which of the bell crank 4 which is bar are constructed alike and when we'are describing one end we wish this to beI understood. y

Ea are segmental plates secured t-o the sl rocket Wheel E and provided with arc slia ed lateral rojectin ends E4 concentric to 'tlfie center of) the sha t 2 and laterally extending lugs E5.

Ie are bosses formed on'the bars I at the opposite side to the arm I,

is 'a sprocket wheel secured on the inner end of the shaft 3 and connected by a sprocket J to a sprocket wheel J2 secured on the shaft K. The hub of the sprocketwheel J 2 forms one portion of, a clutch, and the other portion is formed by a collar J3 of the usual form and having an annular groove J". In the annular groove JX extends the pin on the end ivoted on a bracket 5 attached to the cross ar A2,. The other o posite. end of the bell"'crank is connected by a lever 7 to a lever 8 which coacts with a quadrant 6. The opposite end of the shaft 'K is provided with a' ear pinion K which meshes with an internagear K2 on the mainwheel K3, the axle K4 of which is journaled in suitable bearings Ay and Ax. The drive therefore, of the icking up pro s will now be understood an the manner of t owing such drive into and out of gear, as by -means of the lever 8 and its coacting parts hereinbefore referred to.

We shall now describe the movement of the prongs I connected to the cross bars I carried by the sprocket chains E2.

As the bars I ascend the arm comes in contact with the arc shaped rojections E3 thereby raising the rolls I5 and) tilting the bar so that the prongs are thrown on a backward incline as to direction of movement. As the sprocket wheel E continuesl to revolve the rongs gradually assume the position shown by dotted lines in Fig. 2, until they are entirely withdrawn within the guard strips D. This backward tiltin of the prongs serves to retard the motion o the shock so that it is discharged over the end of the strips D at a comparatively slow speed and thus deposited properly upon the apron L, the movement of which we shall presently describe. As the wheel E continues to: revolve the tail Ie comesA in contact with the projection E5 therebythrowing the bar into position shown in full lines on the crescent shaped end of the guide bar F. As the bar continues to be carried around by the chain E2 it is caused to assume the position shown at the back of the chain E2 by means of the bar F. In this position the arm I4 is thrown with the roller I5 forwardly so that the prongs extend outwardly as they pass around the curvedjend D3, such curved end serving to act on the roller I5 so as to give the prongs a forward incline from base to tip. We find in practice that this is the mostadvantag'eous position ,sheaves are 'carried up over I sproc they can assume to take hold of the shock or sheavesvwithout striking against the guard strips D, and by these pro s the shock or nie guard strips and discharged as hereinbefore explained.

The apron L is carried on rollers journaled in bearings in the back G of the pickin up elevator and the back G Thespindle of the ulppermost roller has secured on it a et wheel L2 through which the a ron L is driven in the direction indicated as ereinafter described.

M are the elevator side bars which areswung on the shaft L journaled in suitable bearings on the frame at the discharge end of the apron L. The elevator consists of the bands N which carry the cross slats'N such band being carried on suitable end band wheels N2 at each end, the band wheel N 2 at the lower end being secured on the shaft L3. The apron L and elevator N are driven as foll lows: O is a sprocket wheel secured on the end of the counter spindle G. O2 is an idler sprocket carried by a bracket O3 secured to t e bar A7. of the frame. The bracket A7 may be vertically adjusted as will appear from the drawing. r13 is a sprocket cham ex-4 tending from the sprocket/wheel O over `the idler O2 to the s rocket wheel O4 on the'shaft- L3 and around t e sprocket whee1L2. P is a,I bevel gear pinion secured on the shaft O and meshing wlth a bevel gear wheel P2 secured on the shaft K.

When it is desired not to drive the apron L l and the carrier N the drivin mechanism just referred to is thrown out by means of the clutch mechanism Is which is of the usual type suchy as described in reference to the drive of the picking u elevator.

The lever Q suitab pivoted on the frame at one end by which the clutch is moved into and out of gear is controlled by means of a rocj, lever 8 and quadrant 9 as indicated in i 3.

Rigs the end wheel located on'the opposite side of the machine vto the main wheel and` carried'onthe crank axle R journaledjin'a4 'l order to adjust the-end wheel R and thereby raise or lower the end of the machine we provide the following simple (device:v R31 is an arm which is clamped at the lower end to the crank axle and isiconnected by a rod R4 to a lever R5 coacting with the quadrantal bracket 4 R6 secured to the end bar A.

wheel S pivotally connected to the' end of the same, the crossbar S secured to the bot- -bearin'g R2 secured below `the end bar A .l In

tom of the fifth wheel pivoted on the quadrantal brackets S2 secured to the ends of the cross bar S', the crank levers S3 coacting :therewith and forming crank axles as shown and the wheels S4 journaled on the crank axles. It will be seen by vmanipulating the levers S3 the front of the extended bar A3 may be raised and lowered with the crank axle and thereby raise and lower the front of the icking up elevator.

T e extended bar A3 is rovided with the drivers seat and the fifth) wheel has connected to it the draft tongue S5 by means of which the machine is driven. a

In order to adjust the loading elevator we have provided the following simple device: 10 are bars pivotally connected to the ends of the frame as indicated in Fig. 4 and carrying at their upper ends-the rollers 11. 12 bare ars secured to the bottom of the bars M of the elevator and forming solid guideways whereby the rollers 11 are confined in their upward and downward movement. 13 is a straddle clip pivotally connected to a lug 14 attached to or formingpart of the bar 10. 15 is a rope or chain which extends from the clip 13 and around the axle 16 journaled in the brackets 17 secured to the side boards M. The shaft 16 is provided with a crank handle or handles 17 and has also a ratchet wheel 18 engaged by a spring pressed pawl 19. It will now be seen that by turning the crank handle 17 that the bar 10 may be drawn towards the crank handle and thereby raise the elevator. To lower the elevator it is simply When the elevator is raised to the desired position it will be held securely by the pawl and gage ratchet wheel hereinbefore referred to from falling any lower at the outer end ,although it may be raised higher if desired.

We have described in detail the construction and arrangement of our im roved shock loader in the form which we pre er but it will be understood that this specication isadidressed to those skilled in the art and that various changes may be made in the construe tion and arrangement of the parts without de arting from the spirit of our invention.

n order to provide for the two speeds of drive for the picking up rongs we provide the following mechanism: he collar J3 is rovided with a clutch at the opposite en to that hereinbefore described, which meshes with the correspondin clutch formed on the top of the ear wheel 3 on the shaft K. The gear whee J4 meshes with a similar gear wheel J 3 on the counter shaft J 3 suitably journaled in the frame. The shaft J has located at its opposite end a sprocket wheel J7 over which asses the end portion of the sprocket chain the sprocket wheel J 7 being an idler.

It will now be seen that by throwing the clutch J3 into the position shown in the drawings the drive is thrown from the sprocket necessary to release the pawl 19..

l wheel Jz to the sprocket J, -but when the s clutch J3 is thrown so as to engage theclutch on thek ear wheel J3, the drive is through the gear w eel J and J3 and J7fto the sprocket wheel J, the sprocket J 3 in this instance acting as an idler. V

What we claim as our invention is: l

1. In a shock loader the combination with the main frameI and main wheel and end suporting wheel, of -an inclined picker elevator ocated in front of the main frame at one side, a bar A3 at the opposite side, said bar extending beyond the front of the main frame a fore carriage pivotally connected to the bar A3 and comprising a cross bar pivotally connected to the end of the bar A3, crank levers ivotally connected to the end of the cross ar, coacting toothed quadrants secured to the bar, supporting wheels journaled on the ends of the crank levers and a tongue secured centrally to the cross bar of the carriage as and for the pur ose specified.

2. In a sliock loader the combination with the main frame and sup orting wheels, of the inclined picker elevator ocated in front of the main frame at one side and comprising side boards, u per and lower cross spindles 'ournaled in t e side boards, sprocket wheels secured thereon to each side of the elevator, connecting sprocket chains therefor, arcshaped v projections on the upper pair of sprocket wheels, cross bars provided with prongs and pivotally secured to the links of the endless sprocket chains, and arms one on the end of each cross bar designed to ride up onto the arc-shaped projections on the sprocket as the chain revolves as and for the purpose specified.

3. In a shock loader, the combination with the main frame and 'supporting wheels, of the inclined picker elevator comprising side boards provided with upper and lower longitudinal guiding strips, u per and lower journaled shafts 1n the si e boards, sprocket wheels secured to the shafts, are-shaped projecting plates secured to the upper wheels and having laterally extending lugs, connecting sprocket chains between the upper'and lower-wheels, cross bars provided'with prongs and extending between the sprocket chains in which they are j ournaled at their ends,

arms extending from the cross bars in the direction of movement of the bars, rollers journaled on the ends of the bars and on the arms and designed to travel in the said guiding strips as and for the-purpose specified.

4. In a shock loader, the combination with the main frame and supporting wheels and inclined picker elevator, of a cross conveyer, and elevating conveyer, a supporting strut for the elevating conveyer p1voted at its lower end on the main frame, a roller journaled on the strut in proximity to the end thereof, a bracket forming a guideway secured to the elevating conveyer and designed inclined-'picker elevator, of across conveyer, an elevatingconveyer -provided with side .boards a guideway on the elevating conveyer,

' a supporting strut for the elevating conveyer pivotally supported at its lower end and hav- 'ing apart designed to engage and have movement in the guide way at its upper end to support thelelevating conveyer and means for swinging the strut on its pivot as and for l the purpose specified. K

6. In a shock loader the combination With the main frame and main wheel and end supporting wheel, picker elevator, c'ross-conveyer and elevating conveyer, of a gear secured to the main wheel, a main shaft journaled on the frame, a pinionsecured at one end of the main shaft and meshing with the main gear,

toothed wheels J J2 on the shaft, .clutch 'con- 25 vnections between the toothed wheels a drivv ing sprocket and main shaft, for the picker elevator a connecting sprocket chain between one of the toothed wheels on the main shaft and the driving sprocket of the picker eleva- 30 tor, gear connections between the other toothed wheel onthe main shaft-and the sprocket chain so as to ive the picker elevator two speeds, a beve gearon the main shaft, a counter shaft, a bevel pinion thereon 35 meshing with the bevel gear on the main shaft, a sprocket on the counter shaft conf nected thereto b a suitable clutch connection, a sprocket c ain connectingy the counter shaft and the driving gear of the elevating 4o and cross carriers as and for the purpose specified.v

THOMAS ROBSON. WALTER GEORGE FISHER.'

Y 'WitnesseszF W. A. J. BELL, C. S. FISHER. 

